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研究了碱浓度Ｍａ和邻硝基甲苯浓度ＭＯＮＴ对氧气液相氧化邻硝基甲苯制取邻硝基苯甲酸的影响。发现在ＮａＯＨ甲醇溶液中选择的Ｍａ＝４．０ｍｏｌ／Ｌ和ＭＯＮＴ＝０．２ｍｏｌ／Ｌ于２．０ＭＰａ、５０℃下反应１２ｈ，可以获得５８５％的ＯＮＢＡ粗品收率，且其纯度可达９８５％。
The effects of alkali concentration (Ma) and o-nitrotoluenes concentration (MONT) on the o-nitrobenzoic acid oxidation by o-nitrobenzene were investigated. The results showed that the crude product yield of ONBA was 585% when Ma = 4.0mol / L and MONT = 0.2mol / L in NaOHmethanol solution were reacted at 2.0MPa and 50 ℃ for 12h, and the purity Up to 98 5%.